在PHP中更改manifest.plist值 [英] Change manifest.plist values in PHP

问题描述

我有一个manifest.plist文件(来自Apple).这是一个XML文件. 这是结构的一个例子:

I have a manifest.plist file (come from Apple). This is an XML file. Here's an exemple of the structure :

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>id</key>
    <string>3214</string>
    <key>name</key>
    <dict>
      <key>en</key>
      <string>Hello World</string>
      <key>jp</key>
      <string>Hello World JP</string>
    </dict>
    <key>kilometers</key>
    <integer>430</integer>
    <key>cloud</key>
    <true/>
  </dict>
</plist>

我可以使用simplexml将此XML作为对象.现在，我想更改XML中的某些值(例如，将cloud更改为jp字符串值的false).

I can get this XML as object with simplexml. Now I would like to change some values in my XML (e.g cloud to false of jp string value).

推荐答案

现在，我尝试使用DOMElement和Xpath查询'/plist/dict/key [4]'获取云密钥.但是如何将其值更改为false?

Now I tried with DOMElement and Xpath query '/plist/dict/key[4]' to get the cloud key. But How can change its value to false ?

您谈论的元素在这里:

    <key>cloud</key>
    <true/>

您想从<true/>更改为<false/>.但是，这不是 更改值，而是将<true/>元素节点替换为新节点，即<false/>元素节点.

And you want to change from <true/> to <false/>. However that is not changing the value but replacing the <true/> element node with a new node, a <false/> element node.

SimpleXML不可能(真的)可行，因为它不能替换节点.

This is not (really) possible with SimpleXML because it can not replace nodes.

使用DomDocument，您可以使用 DOMNode::replaceChild() ^Docs 函数.

With DomDocument you can do it with the DOMNode::replaceChild()^Docs function.

一个例子:

假设您具有变量$key，它是您通过xpath获取的<key>元素.

Let's assume you have the variable $key and it is the <key> element you've fetched via xpath.

$true  = $key->nextSibling;
$false = $key->ownerDocument->createElement('false');
$key->parentNode->replaceChild($false, $true);

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